diff --git a/howto_use_python_otx_api.ipynb b/howto_use_python_otx_api.ipynb
index 452ace0..a2cf997 100644
--- a/howto_use_python_otx_api.ipynb
+++ b/howto_use_python_otx_api.ipynb
@@ -55,7 +55,7 @@
    },
    "outputs": [],
    "source": [
-    "otx = OTXv2(\"\")"
+    "otx = OTXv2(\"YOUR_KEY\")"
    ]
   },
   {